双河油田注水井酸化解堵实验研究  

Experiments of the acidizing and plugging removal of the water injection well in Shuanghe Oilfield

作　　者：彭春洋[1] 周红艳[1] 张袁[1] 刘新[1] 

机构地区：[1]胜利油田分公司河口采油厂,山东东营257200

出　　处：《油气地球物理》2013年第2期68-71,共4页Petroleum Geophysics

摘　　要：注水过程中可能对储层造成损害的主要原因都是注入水不能适应地层从而造成渗透率下降。本文研究分析了注入水的水质资料,通过岩心体积流过量实验,分析了结垢、粘土膨胀以及水中悬浮杂质造成堵塞的可能性和损害的程度。针对各种伤害,通过室内评价试验,筛选出酸液体系中各种添加剂的种类和用量范围,并对不同种类的酸液进行了评价。通过岩心流动实验,模拟地层酸化过程,对不同区块岩心进行基质酸化和解堵酸化研究,筛选出合适的酸化解堵配方及相应的工艺过程。The reservoir damages in the process of water injection are caused by many reasons, t）ut me mare reason is that the injected water is not adaptable to the formation and cause the permeability to decrease. The quality of the injected water is analyzed. The probability and the level of damage of the plugging caused by the scaling, clay expansion and suspended particle are analyzed by analyzing flow through the core volume. The different sorts and dosages of additives in acidizing fluid system are selected by evaluating kinds of acidizing fluid in lab for various damages. The process of acidizing formation is stimulated, the matrix acidizing and acidizing for plugging removal of the cores from kinds of block are implemented, the formulas of the acidizing and plugging removal and the corresponding technologies are selected.

关 键 词：注水井损害 酸化 解堵 双河油田 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]